noun which may take the genitive case particle 'no', noun
glutton; big eater
Refers to a person who eats a lot; can be used as a noun or with の to describe someone.
彼は大食らいで、いつもおかわりをする。
He's a big eater and always goes for seconds.
大食らいの友達と食べ放題に行った。
I went to an all-you-can-eat place with my gluttonous friend.
Compound of 大 (おお, 'big') + 食らい (くらう, 'to eat' in its nominalized form), literally 'big eater'.